Collaborate Disseminate
I have a web page with a Cross-Origin-Embedder-Policy: require-corp header. When I include an cross-origin image without CORP or CORS headers in the response, I expect the image to be blocked, because of the Cross-Origin-Embedder-Policy. H… Continue reading Image loaded despite Cross-Origin-Embedder-Policy: require-corp
If an SVG file with an XSS payload is hosted on say cdn.example.com and is loaded as a display picture on say mainprod.com, can the XSS payload within the SVG file access and steal cookies from mainprod.com despite the Same-Origin Policy (… Continue reading SOP (Same Origin Policy) and CDN SVG XSS
I have been using lots of various APIs in my frontend lately and they all have to be properly configured with CORS and the browser always do extra OPTIONS request that only make debugging harder.
I was wondering if there could be a way of … Continue reading Is prohibiting cookies a viable CORS alternative?
I’m learning the basics of network security and am trying to really understand the single origin policy. I was wondering what the vulnerabilities would be if an origin was only defined by domain, as opposed to the normal trio of scheme, do… Continue reading Why does the DOM single-origin policy take into account protocol and port? What if it was just domain?
Generally I’ve read the motivation for browser same-origin policies is to prevent data being obtained by an attacker because of the sending of credentials in a cross-origin request, and that if you’re requesting entirely public data, the b… Continue reading Why don’t browsers’ same-origin policies allow anonymous cross-origin requests?
I have found a CORS on a website but when I am trying to exploit it for a POC it is fetching all the cookies except auth cookies and due to that I am getting an error message to "User not logged In"
CORS Exploit Request
Both Cross-Origin-Embedder-Policy and Content-Security-Policy seem to do pretty similar things: they restrict the document from loading certain types of subresources (e.g. cross-origin subresources). Why is COEP necessary when we already h… Continue reading What does COEP do that CSP doesn’t already do?
I am a hobby developer and am developing an application with a Node JS / Express backend and a React frontend.
I am currently learning about Cross Site Request Forgery (CSRF), and I want to make sure that I understand it right.
As a victim… Continue reading Is my understanding of CSRF, SOP and CORS correct (Express / React)?
I’m a beginner to Web security and I recently started reading about Same Origin Policy and it’s usefulness in preventing a malicious website from interacting with a secure website being used by a user. (For example, a bank website that a u… Continue reading If browser cookies aren’t shared between different websites, then why is Same origin Policy useful?
COOP: cross origin opener policy
COEP: Cross origin embedder policy
Most of the articles on the web, related to COOP / COEP, point to the fact that by enabling COOP / COEP , your web page can use the sharedArrayBuffer and some other precis… Continue reading COOP and COEP: Is there an advantage to enabling COOP / COEP if I don’t need to use the sharedArrayBuffer or other features?